FR2970690B1 - Gas generator having storage enclosure of endothermic state material. - Google Patents

Gas generator having storage enclosure of endothermic state material.

Info

Publication number
FR2970690B1
FR2970690B1 FR1150555A FR1150555A FR2970690B1 FR 2970690 B1 FR2970690 B1 FR 2970690B1 FR 1150555 A FR1150555 A FR 1150555A FR 1150555 A FR1150555 A FR 1150555A FR 2970690 B1 FR2970690 B1 FR 2970690B1
Authority
FR
France
Prior art keywords
chamber
combustion
charge
diffusion
outlet openings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR1150555A
Other languages
French (fr)
Other versions
FR2970690A1 (en
Inventor
Yvonnig Patton
Francois Peremarty
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autoliv Development AB
Original Assignee
LIVBAG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LIVBAG filed Critical LIVBAG
Priority to FR1150555A priority Critical patent/FR2970690B1/en
Publication of FR2970690A1 publication Critical patent/FR2970690A1/en
Application granted granted Critical
Publication of FR2970690B1 publication Critical patent/FR2970690B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/263Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using a variable source, e.g. plural stage or controlled output
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00Blasting cartridges, i.e. case and explosive
    • F42B3/04Blasting cartridges, i.e. case and explosive for producing gas under pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R2021/26017Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow a cooling agent being added to the inflation fluid

Abstract

A gas generator includes a case enclosing a combustion chamber containing at least one pyrotechnic charge, a diffusion chamber, and a chamber for storing a material releasable from the chamber during combustion of the charge, to change state endothermically under the effect of gas coming from this combustion, then be evacuated via the diffusion chamber. The material is a liquid stored at atmospheric pressure. The chamber has at least one inlet opening, and a series of outlet openings. The outlet openings are arranged within a wall separating the chamber from the diffusion chamber. The charge and the combustion and diffusion chambers are dimensioned such that during combustion, at least one portion of gas flow generated by the charge opens at least the inlet opening and penetrates into the chamber provoking the escape of the material via the outlet openings, then its endothermic change in state, mainly in the diffusion chamber.
FR1150555A 2011-01-25 2011-01-25 Gas generator having storage enclosure of endothermic state material. Expired - Fee Related FR2970690B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1150555A FR2970690B1 (en) 2011-01-25 2011-01-25 Gas generator having storage enclosure of endothermic state material.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR1150555A FR2970690B1 (en) 2011-01-25 2011-01-25 Gas generator having storage enclosure of endothermic state material.
EP20120701992 EP2668069B1 (en) 2011-01-25 2012-01-24 Gas generator having a storage chamber for material with endothermic change of state
JP2013549845A JP5694566B2 (en) 2011-01-25 2012-01-24 Gas generator having a storage chamber for materials that change the endothermic state
US13/981,461 US8960718B2 (en) 2011-01-25 2012-01-24 Gas generator having a storage chamber for material with endothermic change of state
CN201280004672.9A CN103313882B (en) 2011-01-25 2012-01-24 There is the gas generator of storeroom for the material having heat absorption state to change
PCT/EP2012/051064 WO2012101131A1 (en) 2011-01-25 2012-01-24 Gas generator having a storage chamber for material with endothermic change of state

Publications (2)

Publication Number Publication Date
FR2970690A1 FR2970690A1 (en) 2012-07-27
FR2970690B1 true FR2970690B1 (en) 2013-02-08

Family

ID=44209704

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1150555A Expired - Fee Related FR2970690B1 (en) 2011-01-25 2011-01-25 Gas generator having storage enclosure of endothermic state material.

Country Status (6)

Country Link
US (1) US8960718B2 (en)
EP (1) EP2668069B1 (en)
JP (1) JP5694566B2 (en)
CN (1) CN103313882B (en)
FR (1) FR2970690B1 (en)
WO (1) WO2012101131A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8764054B2 (en) * 2009-02-04 2014-07-01 Tk Holdings Inc. Gas generating system
DE102012018172A1 (en) * 2012-09-14 2014-03-20 Trw Airbag Systems Gmbh Gas generator for vehicle individual protection system i.e. gas bag, has release spring arranged in mixing chamber, and combustion chamber faced toward end of release spring that is arranged opposite to liquid container
FR3005724A1 (en) * 2013-05-17 2014-11-21 Herakles Pyrotechnic gas generator

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116948A5 (en) 1970-12-11 1972-07-21 France Etat
CA945123A (en) 1970-12-11 1974-04-09 Bernard Doin Pyrotechnic gas generator
US5660236A (en) * 1994-07-21 1997-08-26 Kidde Technologies, Inc. Discharging fire and explosion suppressants
DE19726296A1 (en) * 1997-06-20 1998-12-24 Temic Bayern Chem Airbag Gmbh Gas generator with cooling device
JPH1199900A (en) * 1997-09-29 1999-04-13 Nippon Koki Co Ltd Inflator for air bag
US6076468A (en) 1998-03-26 2000-06-20 Atlantic Research Corporation Solid propellant/water type hybrid gas generator
EP0978424B1 (en) * 1998-08-04 2003-06-18 TRW Airbag Systems GmbH Gas generator with controlable liquid injection
DE29821232U1 (en) 1998-11-26 1999-04-01 Trw Airbag Sys Gmbh & Co Kg Gas generator for a security system
US6244623B1 (en) * 2000-02-02 2001-06-12 Autoliv Asp, Inc. Flow-open inflator
AU2003218185A1 (en) * 2002-03-19 2003-10-08 Autoliv Asp, Inc. Dual flow inflator for a vehicular airbag system
US6886856B2 (en) * 2003-04-01 2005-05-03 Key Safety Systems, Inc. Dual stage inflator
US6979021B2 (en) * 2003-08-07 2005-12-27 Autoliv Asp, Inc. Integral initiator assembly for use in inflator devices
US7814838B2 (en) * 2004-06-28 2010-10-19 Automotive Systems, Laboratory, Inc. Gas generating system
US7537240B2 (en) * 2005-02-22 2009-05-26 Automotive Systems Laboratory, Inc. Gas generating system
DE202005015793U1 (en) * 2005-10-07 2005-12-01 Trw Airbag Systems Gmbh Gas producer for inflating vehicle airbag, has tubing whose free end extends towards combustion chamber away from dead space
FR2907892B1 (en) * 2006-10-26 2009-01-30 Seva Technologies Gas generator
FR2927291B1 (en) * 2008-02-07 2016-03-04 Livbag Gas generator for a safety device, the load of which is initiated by a heat generating means.
US7770924B2 (en) * 2008-07-17 2010-08-10 Autoliv Asp, Inc. Liquid cooled hybrid
US7878536B2 (en) * 2009-03-16 2011-02-01 Arc Automotive, Inc. Solid propellant/liquid type hybrid gas generator
US8047569B2 (en) * 2010-03-12 2011-11-01 Autoliv Asp, Inc. Multi-stage inflator

Also Published As

Publication number Publication date
CN103313882A (en) 2013-09-18
JP2014508064A (en) 2014-04-03
CN103313882B (en) 2016-06-22
US8960718B2 (en) 2015-02-24
EP2668069B1 (en) 2015-03-18
FR2970690A1 (en) 2012-07-27
JP5694566B2 (en) 2015-04-01
WO2012101131A1 (en) 2012-08-02
EP2668069A1 (en) 2013-12-04
US20130313812A1 (en) 2013-11-28

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Legal Events

Date Code Title Description
TP Transmission of property

Owner name: AUTOLIV DEVELOPMENT AB, SE

Effective date: 20141014

PLFP Fee payment

Year of fee payment: 6

PLFP Fee payment

Year of fee payment: 7

ST Notification of lapse

Effective date: 20180928